Function testLayer

packages/effect/test/FileSystem.test-utils.ts:15–435

(layer: Layer.Layer<Fs.FileSystem, E>, options: TestLayerOptions = {})

}

export const testLayer = <E>(layer: Layer.Layer<Fs.FileSystem, E>, options: TestLayerOptions = {}) => {
  const runPromise = <E2, A>(self: Effect.Effect<A, E2, Fs.FileSystem>) =>
    Effect.runPromise(
      Effect.provide(self, layer)
    )

  it("readFile", () =>
    runPromise(Effect.gen(function*() {
      const fs = yield* Fs.FileSystem
      const data = yield* fs.readFile(`${__dirname}/fixtures/text.txt`)
      const text = new TextDecoder().decode(data)
      expect(text.trim()).toEqual("lorem ipsum dolar sit amet")
    })))

  it("makeTempDirectory", () =>
    runPromise(Effect.gen(function*() {
      const fs = yield* Fs.FileSystem
      let dir = ""
      yield* Effect.scoped(Effect.gen(function*() {
        dir = yield* fs.makeTempDirectory()
        const stat = yield* fs.stat(dir)
        expect(stat.type).toEqual("Directory")
      }))
      const stat = yield* fs.stat(dir)
      expect(stat.type).toEqual("Directory")
    })))

  it("makeTempDirectoryScoped", () =>
    runPromise(Effect.gen(function*() {
      const fs = yield* Fs.FileSystem
      let dir = ""
      yield* Effect.scoped(
        Effect.gen(function*() {
          dir = yield* fs.makeTempDirectoryScoped()
          const stat = yield* fs.stat(dir)
          expect(stat.type).toEqual("Directory")
        })
      )
      const error = yield* Effect.flip(fs.stat(dir))
      assert(error.reason._tag === "NotFound")
    })))

  it.skipIf(options.accessOnDirectory === false)(
    "access on a writable directory",
    () =>
      runPromise(Effect.gen(function*() {
        const fs = yield* Fs.FileSystem
        yield* Effect.scoped(Effect.gen(function*() {
          const dir = yield* fs.makeTempDirectoryScoped()
          yield* fs.access(dir, { writable: true })
        }))
      }))
  )

  it("makeTempFileScoped cleans up", () =>
    runPromise(Effect.gen(function*() {
      const fs = yield* Fs.FileSystem
      yield* Effect.scoped(Effect.gen(function*() {